web statisticsweb stats Business Phone Systems Tech Talk Forum - VOIP & Cloud Phone Help

Business Phone Systems

Previous Thread
Next Thread
Print Thread
Rate Thread
Page 2 of 3 1 2 3
Joined: Nov 2012
Posts: 68
Member
OP Offline
Member
Joined: Nov 2012
Posts: 68
No worries Ed, this is helpful.
I expected it would be mildly complicated anyway. I can source the st from the backplane

Is there a specific pin on the interrupter that provides flash? I was looking for a good schematic and have yet to find one.

Atcom VoIP Phones
VoIP Demo

Best VoIP Phones Canada


Visit Atcom to get started with your new business VoIP phone system ASAP
Turn up is quick, painless, and can often be done same day.
Let us show you how to do VoIP right, resulting in crystal clear call quality and easy-to-use features that make everyone happy!
Proudly serving Canada from coast to coast.

Joined: Jan 2005
Posts: 15,378
Likes: 13
Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****
Offline
Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****
Joined: Jan 2005
Posts: 15,378
Likes: 13
Lamp flash is on pin #7 of any line card slot. Here's a block diagram of a typical line card that gives you some idea of what you need:

400D Line Card


Ed Vaughn, MBSWWYPBX
Joined: Jun 2004
Posts: 399
Member
Offline
Member
Joined: Jun 2004
Posts: 399
this appears to be the best BSP for the 551's that I could find:

https://bellsystempractices.org/500-/518-/518-215-407-i01_1976-07-01.pdf

Joined: Nov 2012
Posts: 68
Member
OP Offline
Member
Joined: Nov 2012
Posts: 68
Thanks guys I think I am all set now. I know I had seen the card pinouts somewhere and for the last week I have been looking at KSU docs for it and it didnt dawn on me to look at the KTU docs which is the easiest place to find it. Ugh.

Thank you all for the help!

Joined: Nov 2012
Posts: 68
Member
OP Offline
Member
Joined: Nov 2012
Posts: 68
I jumpered the FL 2000 into the system and tied the lamp lead to one station so far to prove it works. Using it with a Melco KC19 tone/dial IC
The white set goes off hook and all IC lamps on all stations line 5 light, you select the called station IC number, in this case STA 4.
Station 4, Green set: Buzzer sounds and line 5 lamp goes from steady to flash until the station goes off hook. Once off hook the lamp goes steady and the interrupter stops at the next cycle.

Here are my thoughts... Its an interesting function and kinda "neato" for a collection system. However it requires a lot of wiring for such a simple thing that 99% of people wouldn't notice. Ill probably hook it up if I can get it to work reliably. I've noticed sometimes it doesn't seem to want to work the way I would expect it to so Ill play with it some more.
Thanks for all the help and advice. Heres a link to a youtube vid showing how it works:

Joined: May 2007
Posts: 5,058
Likes: 5
Moderator-1A2, Cabling
*****
Offline
Moderator-1A2, Cabling
*****
Joined: May 2007
Posts: 5,058
Likes: 5
"However it requires a lot of wiring for such a simple thing that 99% of people wouldn't notice."

Well it is kind of "neato", but it probably wasn't a big seller - and just for the reason you mentioned.

It also, probably wasn't cheap.

Sam


"Where are we going and why are we in this hand basket?"
Joined: Sep 2006
Posts: 3,290
Member
*****
Offline
Member
*****
Joined: Sep 2006
Posts: 3,290
It's the electronic version of the original 6A intercom.


Arthur P. Bloom
"30 years of faithful service...15 years on hold"

Joined: May 2007
Posts: 5,058
Likes: 5
Moderator-1A2, Cabling
*****
Offline
Moderator-1A2, Cabling
*****
Joined: May 2007
Posts: 5,058
Likes: 5
[b][/b]
Originally Posted by Arthur P. Bloom
It's the electronic version of the original 6A intercom.
Back in the mid '70s ITT had a 1A2 prep packaged system called the 36A. It was 1A2 with a 2 or 4 channel Intercom under one button with 36 or 54 stations. Flashing lights and bells and blah, blah.

It was a nice system and we put quite a few in, but I don't know how successful they were. Anyone else remember them?

Sam


"Where are we going and why are we in this hand basket?"
Joined: Jan 2005
Posts: 15,378
Likes: 13
Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****
Offline
Moderator-Vertical, Vodavi, 1A2, Outside Wire
*****
Joined: Jan 2005
Posts: 15,378
Likes: 13
I remember them, although I never installed one since they were extremely expensive.


Ed Vaughn, MBSWWYPBX
Joined: Dec 2002
Posts: 9,423
Likes: 1
Member
*****
Offline
Member
*****
Joined: Dec 2002
Posts: 9,423
Likes: 1


Jeff Moss

Moss Communications
Computer Repair-Networking-Cabling
MBSWWYPBX, JGAE
Page 2 of 3 1 2 3

Moderated by  ChrisRR, EV607797, Silversam 

Link Copied to Clipboard
Forum Statistics
Forums84
Topics94,262
Posts638,697
Members49,757
Most Online5,661
May 23rd, 2018
Popular Topics(Views)
211,100 Shoretel
187,712 CTX100 install
186,800 1a2 system
Newest Members
BPopilek, Rich F, LewisR, TDKs79, Buttinset
49,757 Registered Users
Top Posters(30 Days)
dexman 18
Toner 11
TDKs79 8
teleco 4
Who's Online Now
0 members (), 140 guests, and 24 robots.
Key: Admin, Global Mod, Mod
Contact Us | Sponsored by Atcom: One of the best VoIP Phone Canada Suppliers for your business telephone system!| Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers. Sundance Phone System Forums - VOIP & Cloud Phone Help
©Copyright Sundance Communications 1998-2024
Powered by UBB.threads™ PHP Forum Software 7.7.5